Perley l



(No Model.)

P. L. K A FLOAT FOR GR IN NS.

No. 469,149. Patented Feb; 16, 1892.

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NITED STATES PATENT OFFICE.

PERLEY L. KIMBALL, OF BELLOVVS FALL S, VERMONT, ASSIGNOR TO THE VER- MONT FARM MACHINE COMPANY, OF SAME PLACE.

FLOAT FOR C REAMlNG-CANS.

SPECIFICATION forming part of Letters Patent No. 469,149, dated February 16, 1892.

Application filed September 22, 1891. Serial No. 406,449. (No model.)

To all whom it may concern-.-

Be it known that I, PERLEY L. KluBALL, a citizen of the United States, residing at Bellows Falls, in the county of W'indham, State of Vermont, have invented certain new and useful Improvements in Cream-Separators, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in floats for cream-separators; and it has for its objects, among others, to provide an improved automatic creamseparator by which the cream may be readily separated from the milk, working as well in the dark as in the light, and which can be depended upon to work accurately. I provide a float or separator adapted for use in milksetting cans, which float may be gaged on its support to suit the depth of the cream in the can, so that when the faucet or cook at the bottom of the can is opened to let out the skim-milk this float always follows the current, and the stopper, which is made in a shape to fit the opening in the faucet and carried loosely by the float, is drawn into the outlet and stops the outflow of the milk, leaving the cream in the can, from whence it can be drawn as desired. This operates of course after the cream has risen on the milk as it does in the gravity methods. The float is sleeved loosely upon a suitable supportas, for instance, a wire springfrom which is also loosely suspended the stopper, the float being so constructed as to float on the surface of cream, milk, or water, or in any liquid of about the same density. It is adjustable on its support, which support is entirely independent of the can, and this adjustment provides for the different thicknesses of cream, or to leave as little or as much milk as desired under the cream when the stopper stops the outflow. It is perhaps better to leave a little milk in with the cream than to run any of the cream out with the skim-milk. The float is not in the least effected by changes in temperature or difference in the consistency or specific gravity of the milk or cream, nor does hot water injure its efficiency. The can should preferably be provided with a glass panel, so that in using the float it can be readily seen that it works satisfactorily and the thickness of the cream can be easily determined, so as to properly adjust the float. An experienced person knows that the cream from a given herd in this method of setting averages about the same, so that when the float is once adjusted it does not need to be changed from time to time. provided with a lower glass panel, which is not, however, necessary, it shows whether the float is working accurately or not, but has no other function.

Other objects and advantages of the invention will hereinafter appear, and the novel features thereof will be specifically defined by the appended claims.

The invention is clearly illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form a part of this specification, and in which Figure 1 is a vertical section through a can with my float and separator shown in its two positions. Fig. 2 is an enlarged perspective view of the float and its support and stopper removed. I

Like letters of reference indicate like parts in both views.

Referring now to the details of the drawings by letter, A designates the creaming-can of the style known as the cabinet, being formed with an inclined lower wall A and a tapered outlet A which is controlled by a cook or faucet B, which may be a two-way cook or any other preferred form or style. It is shown as designed for vertical delivery; but

it may be otherwise. It may be provided with transparent panels a at top and bottom or at the top only. These are provided for the'purpose of ascertaining the height of the cream at the top and also for determining the proper adjustment of the float upon its support, and at the bottom for determining if the float has worked accurately and the cream has all passed out of the can. The upper transparent panel is deemed especially important in connection with my improved float-sepa rator, as it enables one to easily as certain the height of the cream and determine the proper adjustment of the float. The can here shown has a cover 0, held a slight distance above the top of the can to provide ven- If the can is Y justed' positions thereon: While thisfloatis" shown m the form 'of a 'ball', it is 'to'b'e-unden' tilation and exclude dust and dirt. It is held in posltion bysupports'D; but this-cover has no efiect upon the working of the float or separator. It Works equally as well whether the can 1s covered or not.

My improved separator consists of a float E, which may be of any suitable material, provided with a diametricalpassage e, which' 1s sealed from the interior of the float, and thls float is adj ustably carried by a wire holder F of proper length, formedwithbends .at each end; or, if preferred, the upper end may not be thus provided. It may be the two ends of the wire'not united. This "wire-ispassed through the vertical passage-e of the float and is held in the desired position by frictional contact with the walls of the passage; thew-ire being sufficiently resilient to permit of readyiadj ustment of the "float along thewi-re; and yetse'cur'ely hold it in its ad stood that the invention is not confined to such shape, as it maybe squareyovaljor rect angular, orof other-form; I p G is the stopper,"tapered to fit the outlet'in the can, as seen' by-i dotted "lines in- -Fig'. 1,". and th1s-stopperis provided with a' stem orf shank g, through a hole in which'is passed the ring H, which-is *loosely connected with tl1e-1ower=end of theWirefF in any suitable manner'as, for instancegby the-ring" g;

Other means of connectionofthese-parts,

however, maybe-resorted to so long as they are flexibly connected.-

The displacement 'of' the float is suchiand 1ts weight "relative to the specific gravityof the cream' andmilk'issuch as to cause' it at all times to be borne 'by the cream! YVhen thus supported, tl'1 est0pper hangs loosely.

froni thew-ire holder, asseen' in Fig; l inf all lines.

The operation will be readily understood,

and, brieflystated, is as follows: Themilk' is placed in' the can in the usual manner "and allowed" to-stan'duntil thecr'eam has "risen to the top; as indieated bythe heavy lines in Fig.1:

Thefloat'is' then placed "in position, or it mayibe-pla'ced' in position (the height on the=w-ire*beinggovernedby experience 'as to theusualdepth-of the cream) when the milk is setin thecan'," so that whentheskimming time arrives there is nothing to dobut open thefaucet 'and let them'illcrumout and the creamremaintherein: This makes the skimmoved and another substituted, when the attendant taking hold of the upper end of the wire'holder lifts u onit and permits the'cream to flow out. I

In case the outlet is substantially in line with the wall of the can,as indicated by dotted lines in Fig.;.1, the floatf'will strike'th'ere against, as seen in dotted lines,flth e flexible connection of-the wire'holder with thestopper permitting; it toassume-this or anyother required position.

Thefloat is made so strong'andsubstantial thatfit can 'becle'an'edin hot water or boiled in wa'ter, if need "be, withbut"inj'ury thereto or effecting its perfect operation thereafter. The modeof' adjustment of 'the'float'upon its support will bereadi'ly understood.

Modifications '--in' detail may beresorted to without departi'n'gjirom the spi-rit of "the invention or sacrificing-any of its advantages;

What I claim as newis* v r p -holder; combined with" a. fleat.

adj'u'stablyheld' thereon byfricti onal contact of the"same,'ass et forth;

2. A i spring-holder, combined with 'a float f adjustablyheld'thereoirby frictional contact of'the partsgthe holder, beingpassed through the float, and a stopper pivotall'yj supported from theholder, asset forth;

3. Thecombination, withf'a'float having. a

diametrical' passage therethrough, 0f a holder of w-i ref bent 'upon itself 'to'form substantially,

parallel portions inserted in" said'p'ass'age and held to thefloat by frictional contact of "the parts,"and a stopper pendulous'ly. supported from the"bent"portion in said"holder,' sub stantially as specified;

In testimony whereof Iaffi'x my-signature in presence of' two witnesses.

. PERLEY' L. Kit [BALE Witnesses:

PRESTON I-I. HADLEY, J OSEPH S. WILLsoN.

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